<!--
{
  "availability" : [
    "iOS: 13.0.0 -",
    "iPadOS: 13.0.0 -",
    "macCatalyst: 13.1.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "UIKit",
  "identifier" : "/documentation/UIKit/UIColor/tertiarySystemFill",
  "metadataVersion" : "0.1.0",
  "role" : "Type Property",
  "symbol" : {
    "kind" : "Type Property",
    "modules" : [
      "UIKit"
    ],
    "preciseIdentifier" : "c:objc(cs)UIColor(cpy)tertiarySystemFillColor"
  },
  "title" : "tertiarySystemFill"
}
-->

# tertiarySystemFill

An overlay fill color for large shapes.

```
class var tertiarySystemFill: UIColor { get }
```

## Discussion

Use system fill colors for items situated on top of an existing background color. System fill colors incorporate transparency to allow the background color to show through.

Use this color to fill large shapes, such as input fields, search bars, or buttons.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)